Note 8 - Stockholders' Equity

Equity Incentive Plan

The Company has in effect the Avenue Therapeutics, Inc. 2015 Incentive Plan (as amended, the “2015 Incentive Plan’). The 2015 Incentive Plan was adopted in January 2015 by our stockholders and an amendment to the plan to increase the number of authorized shares issuable to 266,666 shares was approved by our stockholders in December 2021. The 2015 Incentive Plan was amended again to increase the number of authorized shares issuable to 5,266,666 shares and approved by our stockholders on January 30, 2023. Under the 2015 Incentive Plan, the compensation committee of the Company’s board of directors is authorized to grant stock-based awards to directors, officers, employees and consultants. The plan authorizes grants to issue up to 5,266,666 shares of authorized but unissued common stock and expires 10 years from adoption and limits the term of each option to no more than 10 years from the date of grant.

Total shares available for the issuance of stock-based awards under the Company’s 2015 Incentive Plan was 3,352,489 shares at June 30, 2023.

Stock Options

The following table summarizes stock option activity during the six months ended June 30, 2023:

There were no options granted in the first three months of 2023 or for the six month period ending June 30, 2022. The aggregate intrinsic value of options is calculated as the difference between the exercise price of the underlying options and the fair value of the Company's common stock for those options that had exercise prices lower than the fair value of the Company's common stock. As of June 30, 2023, the total compensation cost related to non-vested options awards not yet recognized is approximately $1.7 million with a weighted average remaining vesting period of 1.6 years.

The Company estimated the fair value of stock options granted in the periods presented utilizing a Black-Scholes option-pricing model utilizing the following assumptions:

Restricted Stock Units ("RSU") and Restricted Stock Awards ("RSA")

The following table summarizes the aggregate RSU and RSA activity during the six months ended June 30, 2023:

At June 30, 2023, the Company had unrecognized stock-based compensation expense related to restricted stock units and restricted stock awards of $0.2 million, which is expected to be recognized over the remaining weighted-average vesting period of 1.9 years. This amount does not include, as of June 30, 2023, 3,333 shares of restricted stock outstanding which are performance-based and vest upon achievement of certain corporate milestones. The expense is recognized over the vesting period of the award. Stock-based compensation for awards containing performance conditions will be measured as of the grant date and recorded if and when it is probable that the performance condition will be achieved.

Stock-based compensation expense has been reported in the Company's condensed consolidated statements of operations as follows:

Stock Warrants

The following table summarizes the warrant activity for the six months ended June 30, 2023 and 2022:

There was no warrant activity for the 6 months ended June 30, 2022.

Capital Raises

January 2023 Registered Direct and Private Placement

On January 27, 2023, the Company entered into a Securities Purchase Agreement (the “Registered Purchase Agreement”) with a single institutional accredited investor, pursuant to which the Company agreed to issue and sell (i) 448,000 shares (the “Shares”) of the Companies' common stock at a price per Share of $1.55, and (ii) pre-funded warrants (the “Pre-funded Warrants”) to purchase 1,492,299 shares of common stock, at a price per Pre-funded Warrant equal to the price per Share, less $0.001 (the “Registered Offering”). The Pre-funded Warrants have an exercise price of $0.001 per share, became exercisable upon issuance and remain exercisable until exercised in full. The Company received approximately $3.0 million in gross proceeds from the Registered Offering, before deducting placement agency fees and estimated offering expenses.

On January 27, 2023, the Company also entered into a Securities Purchase Agreement (the “PIPE Purchase Agreement”) with the same institutional accredited investor for a private placement offering (“Private Placement”) of the January 2023 Warrants to purchase 1,940,299 shares of common stock. Pursuant to the PIPE Purchase Agreement, we agreed to issue and sell the January 2023 Warrants at an offering price of $0.125 per January 2023 Warrant to purchase one share of common stock. The January 2023 Warrants have an exercise price of $1.55 per share (subject to adjustment as set forth in the January 2023 Warrants), are exercisable immediately after issuance and will expire three years from the date on which the January 2023 Warrants become exercisable. The January 2023 Warrants contain standard anti-dilution adjustments to the exercise price including for share splits, share dividend, rights offerings and pro rata distributions. The Private Placement closed on January 31, 2023, concurrently with the Registered Offering. The gross proceeds to us from the Private Placement, before deducting placement agent fees and other estimated offering expenses payable by us, were approximately $0.24 million.

InvaGen Share Repurchase

Under the Share Repurchase Agreement, we agreed to pay InvaGen an additional amount as a contingent fee, payable in the form of seven and a half percent (7.5%) of the proceeds of future financings, up to $4.0 million. In connection with the closing of the January 2023 Registered Direct and Private Placement, we made a payment of $0.2 million to InvaGen on February 3, 2023.